Sort:  

Because a cave is a crappy place to live. But so is a BIG house. Which is why, now, after 40-50 years of big houses, the small house and tiny house movements are growing.

Sure, that's a good point. However, not having loads of money does not equal no progression. I guess none of us would mind getting that much each year, but deciding what to do with it might get a bit tough, other than donating it to charity/science/whatever you care about :-)